CVE-2026-49464 NL Portal: IDOR allows any authenticated user to complete and tamper with another user's taak

NL Portal Backend Libraries provide backend components for Dutch government portals that interact with residents, customers, suppliers, and partner organizations. The nl.nl-portal:taak package from version 1.5.0 through 3.0.0 fails to verify ownership when processing the submitTaakV2 GraphQL...

CVE-2026-49464

The nl.nl-portal:taak package in NL Portal Backend Libraries (Dutch government portals) has an insecure direct object reference (IDOR) in the submitTaakV2 GraphQL mutation. Versions 1.5.0 through 3.0.0 fail to verify task ownership: the resolver fetches a task by UUID and transitions it to comple...